Press-button.



J. BOREL & F. GRANGE.

c. NEEL, ADMINISTRATOR or r. GRANGE, DECD.

PRESS BUTTON.

APPLICATiON FILED DEC. 22. 1914.

11 31 ,411 Patented July 3, 1917.

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JOSEPH BORE-L AND FRANQOIS GRANGE, OF ANNECY, FRANCE; CLAUDE NEEL ADMINISTRATOR 0F SAID FRANQOIS GRANGE, DECEASED.

PRESS-BUTTON.

Specification of Letters Patent.

Patented July 3, 11%11'3.

Application filed December 22, 1914. Serial No. 878,577.

To all whom it may concern:

Be it known that we, JOSEPH BOREL and FRANgoIs GRANGE, citizens of the French Republic, residing at Annecy, Haute Savoie, France, have invented certain new and useful Improvements in Press-Buttons, of which the following is a specification.

Known press buttons consist of a base carrying a slotted spring button, all the spring elements of which (of variable numher) are straight, and the button lengthens while it is being forced into the socket.

This construction is not very flexible and consequently the spring weakens very quickly, and the button is useless after a short time.

This invention relates to a new construction of the button spring which forms a more flexible button and consequently insures it a longer life. The spring bands of the button are given such a shape that the button closes up laterally and does not lengthen, as in all known constructions of buttons of this kind.

The accompanying drawing shows clearly the present invention.

Figure 1 shows the new shape of the blades constituting the button according to this invention, while Fig. 2 is a modification.

By referring to the drawings, it will be seen that the individual spring plates of the press button do not, as in former cases, extend upwardly from the base plate in a vertical plane, but are bent or curved laterally at their upper and lower extremities, so as to assume a twisted position in relation to the base plate.

It will also be seen from the drawing that the spring blades are bent to a suitable angle about midway of their length, to form a projection of variable size in accordance with the length and the number of the blades. The shape and the direction of the projection can vary, as shown by way of example in Figs. 1 and 2. The spring blades, instead of being straightened during the closing, bend laterally due to their peculiar construction and in this way a better closing is obtained, a smaller strain on the metal and consequently a longer life of the button. The number of blades or branches, of course, can vary.

This button can be formed by any desired means, either by cutting out a star which is then bent back, shaped and set on the base of a button, or by directlv cutting out from a fully stamped out part having the general outer shape of the button.

What we claim as our invention and desure to secure by Letters Patent is A press button comprising a base provided with a plurality of spring blades bent laterally in the direction of the circumference of the button and also bent transversely of their length. a

In testimony whereof we have signed our names to this specification.

JOSEPH BOREL. o. NEEL, Administrator of the estate 0/ Francois Grange, deceased.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

